It is a collect call for both domestic and international destinations with the toll free number for the call out from Thailand to other countries and the toll free number for the call in from foreign countries to Thailand.
Service in details
Domestic toll free service (DTFS)
This is a toll free numbering service for calls inside Thailand. The service serves government agencies and private companies that require their customers be able to call them with free of charge. They will take all the domestic charge for their customers.
(Options) Domestic toll free service with international call forward
This is for business customers who want their local clients to be able to make the free of charge calls to their oversea branches. Customers can choose one of the two numbering formats either in 1800 XXX XXX or in the UIFN (Universal international free phone number) 001800XXXXXXXX that can call from both local fixed line and mobile telephone of any providers. the calling method is as follows,
(Options) Domestic toll free service with international call forward
This is for business customers who want their local clients to be able to make the free of charge calls to their oversea branches. Customers can choose one of the two numbering formats either in 1800 XXX XXX or in the UIFN (Universal international free phone number) 001800XXXXXXXX that can call from both local fixed line and mobile telephone of any providers. the calling method is as follows,
International toll free service (ITFS)
Service Charge
Service charge for domestic toll free service
- Monthly fixed charge 1,000 Baht/month/number
- Domestic air time charge 3 Baht/minute
Service charge for international toll free
Toll free numbering formats
Domestic Toll Free Number
1800xxxxxx
International Toll Free Number
001800xxxxxx
Universal International Free phone Number/UIFN)
001800xxxxxxxx
is a global unique number. Once it is assigned, it can be used in any countries under ITFS mutual agreement.
is a global unique number. Once it is assigned, it can be used in any countries under ITFS mutual agreement.
List of available countries
List of available countries ITFS & UIFN
Remarks
- * Service customer pays one-time service application fee determined by the foreign provider/carrier.
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